After 90 years as a leader in Standardbred racing and breeding, Castleton Farm here in Lexington has once again become a Thoroughbred operation, known now as Castleton Lyons.

A historic Fayette County horse farm started in 1793 by a future U.S. attorney general could soon be divided up and likely sold for housing, according to documents filed with Lexington officials.

The Lexington Planning Commission on Thursday approved subdividing the Castleton Lyons horse farm into 16 individual lots that would be sold for housing. The lots could range from 40 to more than 80 ...